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Old 10-17-2012, 10:42 PM   #1
makikogi
Scooby Newbie
 
Member#: 192990
Join Date: Oct 2008
Chapter/Region: MAIC
Location: Silver Spring, MD
Vehicle:
2012 Impreza WRX
Satin White Pearl

Default jerky oil pressure needle

I apologize if this is in the wrong place, but I have a dilemma. During my last oil change I went ahead and installed a sandwich plate adapter to run with my prosport premium oil pressure gauge. But when I finished the install the needle was pretty jerky especially when accelerating from partial acceleration to WOT. I don't think it's necessarily a bad sender unit (although I could be wrong), but at idle it reads right where it should (18-20psi all warmed up) and during cruising the tracking is pretty smooth. It's only at low rpm's again going from partial acceleration to WOT. It seems to lag, but then "catches up" real quick. I've heard horror stories about sandwich plate adapters leaking but I think mine seems to be fine considering my oil pressure has been pretty solid for the past 5k miles. But I'll check up on that on my upcoming oil change. This isn't a new phenomena this has been going on since the first day of the install till after 5k miles later.

So I'm up for a oil change soon (prob this weekend) and was contemplating ditching the sandwich plate adapter ONLY if installing the sender under my alternator will make the tracking of the oil pressure gauge track smoothly. Since the sandwich plate adapter is holding up fine I didn't want to go on switching things around if there will be no difference. Also from the sandwich plate adapter to the back of my gauge the supplied wire wasn't long enough so I used some copper wire to extend it. Would doing this cause the gauge to operate jerky like it's doing? Did I need to use a special kind of wire for extending the harness? Or do these things normally operate kinda jerky and jumpy.

I have a 2012 wrx FYI.

Thanks for the help.
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Old 10-17-2012, 11:25 PM   #2
BluewaterAWD
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Member#: 262210
Join Date: Oct 2010
Chapter/Region: International
Vehicle:
2011

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I'd start in the technical forums ; This isn't the place for the right answer!
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Old 10-17-2012, 11:42 PM   #3
makikogi
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Member#: 192990
Join Date: Oct 2008
Chapter/Region: MAIC
Location: Silver Spring, MD
Vehicle:
2012 Impreza WRX
Satin White Pearl

Default

thanks
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